CoI2
metal· CoI2
Cobalt iodide (CoI₂) is an intermetallic compound combining cobalt and iodine, belonging to the transition metal halide family. While not a mainstream structural material in conventional engineering, CoI₂ is of significant interest in materials research for layered crystal structures and two-dimensional material applications, particularly as a candidate for exfoliation into thin-film devices. Its notable low exfoliation energy makes it attractive for emerging technologies in electronics, photonics, and energy storage where atomically thin materials are engineered for enhanced properties.
2D materials researchthin-film electronicsexfoliated nanosheetscatalysis applicationsenergy storage devicesexperimental/research compound
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 26.82 | GPa | — | ||
Exfoliation Energy(Eexf) | 85.11 | meV/atom | — | ||
Poisson's Ratio(ν) | 0.2900 | - | — | ||
Shear Modulus(G) | 13.25 | GPa | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 5.963 | kg/m³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.01400 range 0.000–0.02800median of 2 measurements | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr) | 425.2 | - | — | ||
Magnetic Moment(μB) | 2.264 | µB | — | ||
Piezoelectric Modulus(eij) | 0.000 | C/m² | — | ||
Seebeck Coefficient(S) | 42.33 | µV/K | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.02120 | eV/atom | — | ||
Formation Energy(ΔHf)2 entries | -0.2964 | eV/atom | — | ||
| ↳ | 0.01733 | eV/atom | — |
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
Verified Unverified Low confidence (<80%) Link to source
Regulatory Screening
Environmental
Export Control
RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.